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Fundamentals of Drawing                                                                                                                                    Engineering Design with SOLIDWORKS® 2018













                                                The ASME Y14.5 2009 standard defines an engineering drawing standard. Review the



                                                twelve changes made to the drawing to meet the standard.










                                                                                                                                                                                                                                            No.                Preferred Application of


                                                                                                                                                                                                                                                              the Dimensions:



                                                                                                                                                     i.--- (pl 9  -a-i
                                                                                                                                                                                                                                             1                 Extension lines do not cross


                                                                                                                                                        .----- 0 1 6  --a-i                                                                                    unless situation is
                                                                                                                                                                       '
                                                                                                                     2                                     -i (p8 .25 i---                                                                                    unavoidable. Stagger


                                                                                                                                                                                                                                                               dimension text.




                                                                                                                                                                                                                                            2                  Largest dimension placed


                                                                                                                                                                                                                                                              farthest from profile.


                                                                                                                                                                                                                                                               Dimensions are evenly



                                                                                                                                                                                                                                                               spaced and qrouoed.



                                                                                                                                                                                                                                            3                 Arrowheads do not overlao.
                                                                   0                                                                                                                                                                        4                  Break extension lines that






                                                                                                                                                                                                                                                               cross close to arrowhead.




                                                             60.5                                                                                                                                                                           5                  Flio arrows to the inside.




                                                                                                                                                                                                                                            6                  Move dimensions to the view


                                                                                                                                                                                                                                                              that displays the outline of
                                                                          55.25
                                                                                                                                                                                                                                                              the feature. Ensure that all



                                                                                        45.25                                                                                                                                                                  dimensions are accounted

                                                                                                                                                                                                                                                              for.




                                                                                                                                                                                                                                            7                  Move text off of reference


                                                                                                                                                                                                                                                               aeometrv  centerline                                •




                                                                                                                                                                                                                                            8                  Drag dimensions into their


                                                                                                                                                                                                                                                               correct view boundary.
                                                                                                      10.25
                                                                                                                                                                                                                                                               Create reference dimensions



                                                                                                                                                                                                                        0.2                                    if required. Slant extension


                                                                                                                                                       I                7                      I                                                               lines to clearly illustrate




                                                                                                              2.5                                                                                                                                             feature.


                                                                                                                                                                                                                                            9                  Locate dimensions outside
                                                                                                                                                                      0 17

                                                                                                                                                 s                     '                                                                                       off section lines.


                                                                                                                                                                        29                                                                   10                Create a visible gap between

                                                                                                                                                                               0                                                                               extension lines and profile




                                                                                                                                                                                                                                                              lines.




                                                                                                                                                                                                                                             11               Arrows do not overlap the

                                                                                                             Dimensions are displayed                                                                                                                         text.


                                                                                                             in MILLIMETERS.

                                                                                                                                                                                                                                             12               Whole numbers displayed


                                                                                                                                                                                                                                                              with no zero and no decimal


                                                                                                                                                                                                                                                               ooint 'millimeter .














                                                Apply these dimension practices to the GUIDE drawing. Manufacturing utilizes detailed



                                                drawings. A mistake on a drawing can cost your company a substantial loss in revenue.




                                                The mistake could result in a customer liability lawsuit.








                                                As the designer, dimension and annotate your parts clearly to avoid common problems




                                                and mistakes.












































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